STANMOD

Published by Agricultural Research Service | Department of Agriculture | Metadata Last Checked: January 27, 2026 | Last Modified: 2025-11-21

STANMOD (STudio of ANalytical MODels) is a Windows based computer software package for evaluating solute transport in porous media using analytical solutions of the convection-dispersion solute transport equation. Version 1.0 of STANMOD includes the following models for one-dimensional transport problems: CXTFIT 2.0 (Toride et al., 1995) CFITM (van Genuchten,1980) CFITIM (van Genuchten, 1981) CHAIN (van Genuchten, 1985) Version 2.0 of STANMOD also includes the following models for two- and three-dimensional transport problems: 3DADE (Leij and Bradford, 1994) N3DADE (Leij and Toride, 1997) System Requirements: Intel Pentium processor, 16 Mb RAM, hard disk with at least 20 Mb free disk space, VGA graphics (SVGA with 256 colors recommended), MS Windows 95 or higher. Resources in this dataset:Resource Title: STANMOD download page. File Name: Web Page, url: https://www.ars.usda.gov/research/software/download/?softwareid=102&modecode=20-36-15-00

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Complete Metadata

@type	dcat:Dataset
accessLevel	public
bureauCode	[ "005:18" ]
contactPoint	{ "fn": "Skaggs, Todd", "hasEmail": "mailto:Todd.Skaggs@ars.usda.gov" }
description	<p>STANMOD (STudio of ANalytical MODels) is a Windows based computer software package for evaluating solute transport in porous media using analytical solutions of the convection-dispersion solute transport equation. Version 1.0 of STANMOD includes the following models for one-dimensional transport problems:</p> <p><br> <br></p> <ul> <li>CXTFIT 2.0 (Toride et al., 1995)</li> <li>CFITM (van Genuchten,1980)</li> <li>CFITIM (van Genuchten, 1981)</li> <li>CHAIN (van Genuchten, 1985)</li> </ul> <p><br> <br></p> <p>Version 2.0 of STANMOD also includes the following models for two- and three-dimensional transport problems:</p> <ul> <li>3DADE (Leij and Bradford, 1994)</li> <li>N3DADE (Leij and Toride, 1997)</li> </ul> <p><br> <br></p> <p>System Requirements: Intel Pentium processor, 16 Mb RAM, hard disk with at least 20 Mb free disk space, VGA graphics (SVGA with 256 colors recommended), MS Windows 95 or higher. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: STANMOD download page.</p> <p>File Name: Web Page, url: <a href="https://www.ars.usda.gov/research/software/download/?softwareid=102&modecode=20-36-15-00">https://www.ars.usda.gov/research/software/download/?softwareid=102&modecode=20-36-15-00</a> </p></li></ul><p></p>
distribution	[ { "@type": "dcat:Distribution", "title": "https://www.ars.usda.gov/research/software/download/?softwareid=102&modecode=20-36-15-00", "mediaType": "text/html", "downloadURL": "https://www.ars.usda.gov/research/software/download/?softwareid=102&modecode=20-36-15-00" } ]
identifier	10113/AA22521
keyword	[ "ARS", "computer software", "data.gov", "solute transport media" ]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2025-11-21
programCode	[ "005:040" ]
publisher	{ "name": "Agricultural Research Service", "@type": "org:Organization" }
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temporal	2008-01-01/2008-01-01
title	STANMOD